Perform navigation policy check on UI thread for --site-per-process.

content/browser/loader/cross_site_resource_handler.h

Index: content/browser/loader/cross_site_resource_handler.h
diff --git a/content/browser/loader/cross_site_resource_handler.h b/content/browser/loader/cross_site_resource_handler.h
index 9f487a6fd3513ddb5eca333b2339e57f99507b5e..5c9a85044962eaac4fd29b188971875002fff54e 100644
--- a/content/browser/loader/cross_site_resource_handler.h
+++ b/content/browser/loader/cross_site_resource_handler.h
@@ -6,6 +6,7 @@
 #define CONTENT_BROWSER_LOADER_CROSS_SITE_RESOURCE_HANDLER_H_
 
 #include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
 #include "content/browser/loader/layered_resource_handler.h"
 #include "content/common/content_export.h"
 #include "net/url_request/url_request_status.h"
@@ -59,6 +60,7 @@ class CrossSiteResourceHandler : public LayeredResourceHandler {
                                 ResourceResponse* response,
                                 bool should_transfer);
 
+  void ResumeOrTransfer(bool is_transfer);
   void ResumeIfDeferred();
 
   // Called when about to defer a request.  Sets |did_defer_| and logs the
@@ -73,6 +75,8 @@ class CrossSiteResourceHandler : public LayeredResourceHandler {
   std::string completed_security_info_;
   scoped_refptr<ResourceResponse> response_;
 
+  base::WeakPtrFactory<CrossSiteResourceHandler> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(CrossSiteResourceHandler);
 };